Lactarinic acid
[化] 十八碳-6-酮酸
🧩 词语组成解析
🗣️ 情景例句
Is he OK?
他还好吗？
He has a pair of shoes.
他有一双鞋。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。